In Freeze-Fracture Methodology,the Metal-Carbon Coating of the Freeze-Fracture Specimen Is

question 89

Multiple Choice

In freeze-fracture methodology,the metal-carbon coating of the freeze-fracture specimen is viewed in the electron microscope after the tissue template has been thawed,removed and discarded.What is the name of the metal-carbon construct that is viewed in the scope?

• A)a model
• B)a repeat
• C)a replica
• D)an object
• E)a metallica

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Definitions:

Lymphatic Vessels

Part of the lymphatic system, these vessels transport lymph, a fluid containing white blood cells and waste products, back into the bloodstream.

Valves

Structures that open and close to control the flow of fluids in one direction, commonly found in the heart and veins of the circulatory system.

Vaccinations

The administration of antigenic material (a vaccine) to stimulate an individual's immune system to develop adaptive immunity to a pathogen.

MHC Class I

Molecules found on the surface of all nucleated cells that present peptide fragments to the immune system, crucial for the recognition of self-cells by T cells.